Dermatology is the branch of medicine dealing with the skin, nails, hair and its diseases. A professional in this area is called Dermatologist. They are trained to carry out skin grafts, laser treatments, the excision of lesions, and more.
An optometrist is a person skilled in examining patients' eyes, conducting vision tests and diagnosing and treating sight problems. The main responsibilities of an optometrist include examining patients of all ages to detect vision defects, diseases.
A Pathologist is a physician who examines the organs, tissues and body fluids of the patient to deliver a diagnosis. They help the primary doctor by providing the information regarding the patient to find and diagnose the disease in a right way.